Development of the correction procedure for High Volume Instrument elongation measurement

McCormick, Kolby M; Morais, J. P. S.; Héquet, Eric; Kelly, Brendan

doi:10.1177/0040517519829002

Cited by 9 publications

(10 citation statements)

References 22 publications

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“…Thirty cotton samples were used in the primary ber testing study; 14 samples were obtained from the 2017 crop year NCVT and 14 samples from the 2018 crop year NCVT. Two additional samples used in the testing are the high and low HVI elongation calibration materials (McCormick et al, 2019). The variety and growing location for the NCVT samples is shown in Table 1.…”

Section: Methodsmentioning

confidence: 99%

“…In recent years, there has been a renewed focus on using elongation in breeding programs (Benzina et al, 2007;Kelly et al, 2019) and the role of elongation in processing (Mathangadeera et al, 2020). Much of the renewed interest is due to the development of calibration procedures for the HVI elongation measurement (Delhom et al, 2020;McCormick et al, 2019). However, questions remain about how to apply an elongation measurement to provide the most utility and how to interpret elongation in light of other confounding factors such as measurement equipment, test parameters, variety, growing condition, and the interaction with other ber properties.…”

Section: Introductionmentioning

confidence: 99%

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Investigation into a practical approach and application of cotton fiber elongation

Delhom

Wanjura

Pelletier

et al. 2022

Preprint

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The strength of cotton fiber has been extensively studied and significantly improved through selective breeding, but fiber elongation has largely been ignored, even though elongation contributes to determining the energy needed to break fibers. Recent developments to calibrate the High Volume Instrument (HVI) for elongation has renewed interest in elongation. However, it is not understood how best to utilize yet another fiber property which has the potential to add to the complexity of fiber selection. To explore a practical approach to applying elongation, cotton samples were tested using single fiber methods, the Stelometer, and the HVI. Comparison of strength, elongation, and combined properties such as modulus were explored. HVI testing was shown to be sensitive enough to characterize elongation differences but unlike single fiber testing it was unable to capture within-sample variation. Fiber bundle testing, like Stelometer and HVI was shown to reduce bias due to fiber selection. The use of secant modulus, an intrinsic material property, allowed for one value to represent both strength and elongation. Secant modulus was shown to contain more useful information than either elongation or work-to-break. Work-to-break was shown to be more influenced by a specific value of breaking force or elongation rather than the intrinsic behavior of the sample being tested.Exploring the influence of genetics and environment on elongation, and its interaction with other fiber properties, requires additional work. Secant modulus, by combining strength and elongation into one value, shows the potential to incorporate elongation values into fiber characterization without increasing the complexity of current fiber selection processes.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation into a practical approach and application of cotton fiber elongation

Delhom

Wanjura

Pelletier

et al. 2022

Preprint

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“…Elongation reference materials were provided by the Fiber and Biopolymer Research Institute (FBRI) of Texas Tech University (Lubbock, TX). The two samples represented cotton with low elongation (5.17%) and cotton with high elongation (9.00%) which were developed in previously reported research efforts (Kelly and Hequet 2017;McCormick et al 2019). The reference materials were sub-sampled (~2 kg) from the well-blended bales produced via the previous efforts and sent to each cooperating laboratory.…”

Section: Elongation Calibration Materialsmentioning

confidence: 99%

“…As an uncalibrated parameter, its results have not been reproducible between instruments (Taylor 1992), although the results are consistent within a single instrument (Benzina et al 2007). The preparation of calibration materials for elongation has recently been undertaken by Kelly and Hequet (2017) and McCormick et al (2019), and this work has resulted in a pair of high and low elongation standards.…”

Section: Introductionmentioning

confidence: 99%

Calibration of HVI cotton elongation measurements

et al. 2020

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Background The strength of cotton fiber has been extensively studied and significant improvements in fiber strength have been made, but fiber elongation has largely been ignored, despite it contributing to the energy needed to break fibers, which affects fiber handling and processing. High Volume Instruments (HVI) measure fiber elongation but have not been calibrated for this property, making the measurement unavailable for comparative work among instruments. In prior work, a set of elongation calibration materials had been developed based on Stelometer results. A round trial of ten Australian and U.S. instruments was conducted on six cotton samples representing a range of 4.9% to 8.1% elongation. Results By scaling the HVI elongation values of each instrument to the values of the two calibration samples, the coefficient of variation in instrument measurements was reduced from an average of 34% for the uncalibrated measurements to 5% for the calibrated measurements. The reduction in variance allows for the direct comparison of results among instruments. A single-point elongation calibration was also assessed but found to be less effective than the proposed two-point calibration. Conclusion The use of an effective calibration routine on HVI measurement of cotton significantly reduces the coefficient of variation of the elongation measurement within and between instruments. The implementation of the elongation calibration will allow testing and breeding programs to implement high-speed elongation testing which makes the use of elongation values possible in breeding programs.

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“…In recent years, there has been a renewed focus on using elongation in breeding programs (Benzina et al 2007;Kelly et al 2019) and the role of elongation in processing (Mathangadeera et al 2020). Much of the renewed interest is due to the development of calibration procedures for the HVI elongation measurement (Delhom et al 2020;McCormick et al 2019). However, questions remain about how to apply an elongation measurement to provide the most utility and how to interpret elongation in light of other confounding factors such as measurement equipment, test parameters, variety, growing condition, and the interaction with other fiber properties.…”

Section: Introductionmentioning

confidence: 99%

Investigation into a practical approach and application of cotton fiber elongation

Delhom¹,

Wanjura²,

Pelletier³

et al. 2023

J Cotton Res

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Background The strength of cotton fiber has been extensively studied and significantly improved through selective breeding, but fiber elongation has largely been ignored, even though elongation contributes to determining the energy needed to break fibers. Recent developments to calibrate the high volume instrument (HVI) for elongation has renewed interest in elongation. However, it is not understood how best to utilize yet another fiber property which has the potential to add to the complexity of fiber selection. To explore a practical approach to applying elongation, cotton samples were tested using single fiber methods, the Stelometer, and the HVI. Comparison of strength, elongation, and combined properties such as modulus were explored. Results HVI testing was shown to be sensitive enough to characterize elongation differences but unlike single fiber testing it was unable to capture within-sample variation. Fiber bundle testing, like Stelometer and HVI was shown to reduce bias due to fiber selection. Conclusion The use of secant modulus, an intrinsic material property, allowed for one value to represent both strength and elongation. Secant modulus was shown to contain more useful information than either elongation or work-to-break. Work-to-break was shown to be more influenced by a specific value of breaking force or elongation rather than the intrinsic behavior of the sample being tested. Exploring the influence of genetics and environment on elongation, and its interaction with other fiber properties, requires additional work. Secant modulus, by combining strength and elongation into one value, shows the potential to incorporate elongation values into fiber characterization without increasing the complexity of current fiber selection processes.

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Development of the correction procedure for High Volume Instrument elongation measurement

Cited by 9 publications

References 22 publications

Investigation into a practical approach and application of cotton fiber elongation

Investigation into a practical approach and application of cotton fiber elongation

Calibration of HVI cotton elongation measurements

Investigation into a practical approach and application of cotton fiber elongation

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